<template>
    <div class="goods-comment">
        <div class="head" v-if="commentInfo">
            <div class="data">
                <p>
                    <span>{{commentInfo.salesCount}}</span>
                    <span>人购买</span>
                </p>
                <p>
                    <span>{{commentInfo.praisePercent}}</span>
                    <span>好评率</span>
                </p>
            </div>
            <div class="tags">
                <div class="dt">大家都在说：</div>
                <div class="dd">
                    <a v-for="(item,i) in commentInfo.tags" :key="item.title"
                       href="javascript:;"
                       :class="{active:currTagIndex===i}"
                       @click="changeTag(i)">
                        {{item.title}}（{{item.tagCount}}）
                    </a>
                </div>
            </div>
        </div>

        <div class="sort" v-if="commentInfo">
            <span>排序：</span>
            <a @click="changeSort(null)" :class="{active:reqParams.sortField===null}" href="javascript:;">默认</a>
            <a @click="changeSort('createTime')" :class="{active:reqParams.sortField==='createTime'}"
               href="javascript:;">最新</a>
            <a @click="changeSort('praiseCount')" :class="{active:reqParams.sortField==='praiseCount'}"
               href="javascript:;">最热</a>
        </div>
        <!-- 评价列表 -->
        <div class="list" v-if="commentList">
            <div class="item" v-for="item in commentList" :key="item.id">
                <div class="user">
                    <img :src="item.member.avatar" alt="">
                    <span>{{formatNickname(item.member.nickname)}}</span>
                </div>
                <div class="body">
                    <div class="score">
                        <i v-for="i in item.score" :key="i+'s'" class="iconfont icon-wjx01"></i>
                        <i v-for="i in 5-item.score" :key="i+'k'" class="iconfont icon-wjx02"></i>
                        <span class="attr">{{formatSpecs(item.orderInfo.specs)}}</span>
                    </div>
                    <div class="text">{{item.content}}</div>
                    <!-- 评论图片组件 -->
                    <GoodsCommentImage v-if="item.pictures.length" :pictures="item.pictures"/>
                    <div class="time">
                        <span>{{item.createTime}}</span>
                        <span class="zan"><i class="iconfont icon-dianzan"></i>{{item.praiseCount}}</span>
                    </div>
                </div>
            </div>
        </div>
        <!-- 分页组件 -->
        <div class="pagination">
            <el-pagination
                    background
                    layout="prev, pager, next"
                    :page-size="reqParams.pageSize"
                    :total="total"
                    :current-page="reqParams.page"
                    @current-change="changePagerFn">
            </el-pagination>
        </div>
    </div>
</template>

<script>
    import {findGoodsCommentInfo, findGoodsCommentList} from "@/api/product";
    import GoodsCommentImage from "@/views/goods/components/goods-comment-image";

    export default {
        name: "GoodsComment",
        components: {GoodsCommentImage},
        props: {
            goods: {
                type: Object,
                default: {}
            }
        },
        data() {
            return {
                commentInfo: null,
                currTagIndex: 0,
                reqParams: {
                    page: 1,
                    pageSize: 10,
                    hasPicture: null,
                    tag: null,
                    // 排序方式：praiseCount 热度  createTime 最新
                    sortField: null
                },
                commentList: null,
                total: 0
            }
        },
        created() {

            this.findGoodsCommentInfo()
        },
        methods: {
            async findGoodsCommentInfo() {
                const {result} = await findGoodsCommentInfo(this.goods.id)

                result.tags.unshift({
                    title: '有图',
                    tagCount: result.hasPictureCount,
                    type: 'img'
                })
                result.tags.unshift({
                    title: '全部评价',
                    tagCount: result.evaluateCount,
                    type: 'all'
                })
                this.commentInfo = result
            },
            changeTag(index) {
                this.currTagIndex = index
            },
            // 点击排序
            changeSort(sortField) {
                this.reqParams.sortField = sortField
                // 重置页码1
                this.reqParams.page = 1
            },
            formatNickname(nickname) {
                return nickname.substr(0, 1) + '****' + nickname.substr(-1)
            },

            formatSpecs(specs) {
                return specs.reduce((p, c) => `${p} ${c.name}：${c.nameValue}`, '').trim()
            },
            // 实现分页切换
            changePagerFn(newPage) {
                this.reqParams.page = newPage
            }
        },
        watch: {
            reqParams: {
                async handler() {
                    const {result} = await findGoodsCommentList(this.goods.id, this.reqParams)
                    this.commentList = result.items
                    this.total = result.counts
                },
                immediate: true,
                deep: true
            }
        }
    }
</script>

<style scoped lang="less">

    .goods-comment {
        .head {
            display: flex;
            padding: 30px 0;

            .data {
                width: 340px;
                display: flex;
                padding: 20px;

                p {
                    flex: 1;
                    text-align: center;

                    span {
                        display: block;

                        &:first-child {
                            font-size: 32px;
                            color: @priceColor;
                        }

                        &:last-child {
                            color: #999;
                        }
                    }
                }
            }

            .tags {
                flex: 1;
                display: flex;
                border-left: 1px solid #f5f5f5;

                .dt {
                    font-weight: bold;
                    width: 100px;
                    text-align: right;
                    line-height: 42px;
                }

                .dd {
                    flex: 1;
                    display: flex;
                    flex-wrap: wrap;

                    > a {
                        width: 132px;
                        height: 42px;
                        margin-left: 20px;
                        margin-bottom: 20px;
                        border-radius: 4px;
                        border: 1px solid #e4e4e4;
                        background: #f5f5f5;
                        color: #999;
                        text-align: center;
                        line-height: 40px;

                        &:hover {
                            border-color: @xtxColor;
                            background: lighten(@xtxColor, 50%);
                            color: @xtxColor;
                        }

                        &.active {
                            border-color: @xtxColor;
                            background: @xtxColor;
                            color: #fff;
                        }
                    }

                }
            }

        }

        .sort {
            height: 60px;
            line-height: 60px;
            border-top: 1px solid #f5f5f5;
            border-bottom: 1px solid #f5f5f5;
            margin: 0 20px;
            color: #666;

            > span {
                margin-left: 20px;
            }

            > a {
                margin-left: 30px;

                &.active, &:hover {
                    color: @xtxColor;
                }
            }
        }

        .list {
            padding: 0 20px;

            .item {
                display: flex;
                padding: 25px 10px;
                border-bottom: 1px solid #f5f5f5;

                .user {
                    width: 160px;

                    img {
                        width: 40px;
                        height: 40px;
                        border-radius: 50%;
                        overflow: hidden;
                    }

                    span {
                        padding-left: 10px;
                        color: #666;
                    }
                }

                .body {
                    flex: 1;

                    .score {
                        line-height: 40px;

                        .iconfont {
                            color: #ff9240;
                            padding-right: 3px;
                        }

                        .attr {
                            padding-left: 10px;
                            color: #666;
                        }
                    }
                }

                .text {
                    color: #666;
                    line-height: 24px;
                }

                .time {
                    color: #999;
                    display: flex;
                    justify-content: space-between;
                    margin-top: 5px;
                }
            }
        }
        .pagination{
            padding: 40px;
            display: flex;
            justify-content: center;
        }
    }

</style>